Comprehensive Error Handling and Logging

[a7medsa22]

Description

Implement robust error handling system with comprehensive logging for debugging and monitoring.

Requirements

• Global exception filter
• Structured error responses
• Application-wide logging system
• Request/response logging
• Error classification and handling
• Log rotation and management

Error Categories

• Validation Errors: Input validation failures
• Authentication Errors: Login/token issues
• Authorization Errors: Permission denied
• Business Logic Errors: Appointment conflicts, etc.
• System Errors: Database, file system issues

Acceptance Criteria

• Global exception filter implementation
• Structured error response format
• Winston logger integration
• Request/response logging middleware
• Error classification system
• Log file rotation configuration
• Error monitoring and alerting

Logging Levels

• ERROR: Application errors and exceptions
• WARN: Warning conditions and deprecated usage
• INFO: General application flow information
• DEBUG: Detailed debugging information
• TRACE: Very detailed diagnostic information

Log Structure

• Timestamp
• Request ID (correlation)
• User ID (if authenticated)
• HTTP method and endpoint
• Response status and time
• Error details and stack traces`